Usage

`javascript
var zlaset = require( '@stdlib/lapack-base-zlaset' );
`

#### zlaset( order, uplo, M, N, alpha, beta, A, LDA )

Sets the off-diagonal elements and the diagonal elements of a double-precision complex floating-point matrix to specified values.

`javascript
var Complex128Array = require( '@stdlib/array-complex128' );
var Complex128 = require( '@stdlib/complex-float64-ctor' );

var A = new Complex128Array( 4 );

var alpha = new Complex128( 1.0, 2.0 );
var beta = new Complex128( 3.0, 4.0 );

zlaset( 'row-major', 'all', 2, 2, alpha, beta, A, 2 );

var z = A.get( 0 );
// returns [ 3.0, 4.0 ]

z = A.get( 1 );
// returns [ 1.0, 2.0 ]
`

The function has the following parameters:

- order: storage layout.
- uplo: specifies whether to set the upper or lower triangular/trapezoidal part of a matrix A.
- M: number of rows in A.
- N: number of columns in A.
- alpha: value assigned to off-diagonal elements.
- beta: value assigned to diagonal elements.
- A: input [Complex128Array][@stdlib/array/complex128].
- LDA: stride of the first dimension of A (a.k.a., leading dimension of the matrix A).

Note that indexing is relative to the first index. To introduce an offset, use [typed array][mdn-typed-array] views.

`javascript
var Complex128Array = require( '@stdlib/array-complex128' );
var Complex128 = require( '@stdlib/complex-float64-ctor' );

// Initial array:
var A0 = new Complex128Array( 5 );

// Create offset view:
var A1 = new Complex128Array( A0.buffer, A0.BYTES_PER_ELEMENT*1 ); // start at 2nd element

var alpha = new Complex128( 1.0, 2.0 );
var beta = new Complex128( 3.0, 4.0 );

zlaset( 'row-major', 'all', 2, 2, alpha, beta, A1, 2 );

var z = A0.get( 1 );
// returns [ 3.0, 4.0 ]
`

#### zlaset.ndarray( uplo, M, N, alpha, beta, A, sa1, sa2, oa )

Sets the off-diagonal elements and the diagonal elements of a double-precision complex floating-point matrix to specified values using alternative indexing semantics.

`javascript
var Complex128Array = require( '@stdlib/array-complex128' );
var Complex128 = require( '@stdlib/complex-float64-ctor' );

var A = new Complex128Array( 4 );

var alpha = new Complex128( 1.0, 2.0 );
var beta = new Complex128( 3.0, 4.0 );

zlaset.ndarray( 'all', 2, 2, alpha, beta, A, 2, 1, 0 );

var z = A.get( 0 );
// returns [ 3.0, 4.0 ]

z = A.get( 1 );
// returns [ 1.0, 2.0 ]
`

The function has the following parameters:

- uplo: specifies whether to set the upper or lower triangular/trapezoidal part of a matrix A.
- M: number of rows in A.
- N: number of columns in A.
- alpha: value assigned to off-diagonal elements.
- beta: value assigned to diagonal elements.
- A: input [Complex128Array][@stdlib/array/complex128].
- sa1: stride of the first dimension of A.
- sa2: stride of the second dimension of A.
- oa: starting index for A.

While [typed array][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example,

`javascript
var Complex128Array = require( '@stdlib/array-complex128' );
var Complex128 = require( '@stdlib/complex-float64-ctor' );

var A = new Complex128Array( 5 );

var alpha = new Complex128( 1.0, 2.0 );
var beta = new Complex128( 3.0, 4.0 );

zlaset.ndarray( 'all', 2, 2, alpha, beta, A, 2, 1, 1 );

var z = A.get( 0 );
// returns [ 0.0, 0.0 ]

z = A.get( 1 );
// returns [ 3.0, 4.0 ]
`